Hong Kong Stock Movement: WANJIAGROUP RTS plummets 20%! No significant news but shows volatility, what is causing such market sentiment?

Hong Kong Stock Movement WANJIAGROUP RTS, down 20.00%, with no significant news recently. Trading is active, and capital flow is evident. Considering the sector and industry trends, the stock shows significant volatility, and the specific reasons need further observation. Stocks with High Trading Volume in the Industry SMIC, down 4.57%. Based on recent key news: On March 2, SMIC experienced multiple large transactions, with a transaction amount exceeding HKD 20 million, indicating market selling pressure on the stock. These large transactions may reflect institutional investors' withdrawal, leading to a decline in stock price. On March 2, the market expressed concerns about SMIC's future profitability, especially against the backdrop of challenges facing the global semiconductor industry, which dampened investor confidence and further pushed down the stock price. On March 1, analysts downgraded SMIC's earnings expectations, predicting a slowdown in earnings growth over the next few quarters. This news intensified negative market sentiment, putting pressure on the stock price. The semiconductor industry faces global challenges. Huahong Semiconductor, down 5.70%. Based on recent key news: On March 2, Huahong Semiconductor recorded large transactions in pre-market trading, with a transaction price of HKD 96.750 per share, involving an amount of HKD 27.5738 million. This transaction indicates market selling pressure on the stock, leading to a decline in stock price. The semiconductor industry is currently facing challenges of weak demand, and the market holds a cautious attitude towards future growth expectations, further exacerbating Huahong Semiconductor's stock price volatility. The uncertainty of the macroeconomic environment, including rising interest rates and slowing global economic growth, has increased investors' risk-averse sentiment towards tech stocks, affecting Huahong Semiconductor's market performance. The semiconductor industry faces weak demand and increased macroeconomic uncertainty. Junda Co., down 11.00%, with a transaction amount reaching HKD 627 million, and no significant news recently. Trading is active, and capital flow is evident. Considering the sector and industry trends, the stock shows significant volatility, and the specific reasons need further observation. Stocks with High Market Capitalization in the Industry GigaDevice, down 5.33%. Based on recent key news: On March 3, GigaDevice reached a deep cooperation with Tuya Smart to promote ecological co-construction in the AI+IoT field. This cooperation is based on the GD32 MCU wireless hardware platform, fully equipped with the TuyaOpen open-source development framework and AI large model, aiming to lower the deployment threshold for IoT device networks and shorten the product launch cycle. However, the market is cautious about the short-term impact of the cooperation, leading to a decline in stock price. On February 28, the National Development and Reform Commission's Price Monitoring Center reported that the prices of storage chips continue to rise and are being transmitted downstream. Although this news is beneficial for the industry as a whole, it failed to immediately boost GigaDevice's stock price, reflecting market concerns about short-term profitability. Cooperation in the AI+IoT field accelerates, and the market remains cautious